Actually I would think that would hurt your score if you're making it a true Daily Double, since getting it earlier in the game would mean less money to double.

Irregardless, no matter what strategy you employ you've still gotta know a lot of stuff and question the answers right ;-)

It's not just the looking for daily doubles. If you take the big money questions off the board early you take away opportunity for people to make a comeback. Also jumping around can take people out of a rhythm.